docs: def api_delete(service, file_id, owner_token):
      """Delete a file already uploaded to Send"""
      service += 'api/delete/%s' % file_id
      r = requests.post(service, json={'owner_token': owner_token, 'delete_token': owner_token})
      r.raise_for_status()
  
      if r.text == 'OK':
          return True
      return False